py:

import logging
import os.path
import uuid
import tornado.httpserver
import tornado.ioloop
import tornado.options
import tornado.web
import tornado.websocket


def send_message(message):
    for handler in ChatSocketHandler.socket_handlers:
        try:
            handler.write_message(message)
        except:
            logging.error('Error sending message', exc_info=True)


class MainHandler(tornado.web.RequestHandler):
    def get(self):
        self.render('index.html')


class ChatSocketHandler(tornado.websocket.WebSocketHandler):
    socket_handlers = set()
    num = 0
    def open(self):
        ChatSocketHandler.num = ChatSocketHandler.num + 1
        name = "name:%s" % ChatSocketHandler.num
        ChatSocketHandler.socket_handlers.add(self)
        send_message('A new user has entered the chat room.')

    def on_close(self):
        ChatSocketHandler.num = ChatSocketHandler.num - 1
        ChatSocketHandler.socket_handlers.remove(self)
        send_message('A user has left the chat room.')

    def on_message(self, message):
        send_message(message)


def main():
    application = tornado.web.Application([
        ('/', MainHandler),
        ('/new-msg/socket', ChatSocketHandler)
    ], debug=True)
    http_server = tornado.httpserver.HTTPServer(application)
    http_server.listen(8000)
    tornado.ioloop.IOLoop.instance().start()

if __name__ == '__main__':
    main()

html:

    
    


hello world


send

这个一个简单的demo
我想改进下
页面上设置好用户名，然后每次发言的时候带上用户名
这个应该怎么改？